Table 5. Staging of cancers detected in each screening round in the BHA affected by the COVID-19 pandemic in the area of reference of Parc de Salut Mar (PSMAR), in Barcelona, Spain in the period 2012–2021 by screening round.
| Pre-COVID total | Post-COVID +1 round | Difference post–pre | ||||
|---|---|---|---|---|---|---|
| (2012–2019) | (2020–2021) | |||||
| n | % | n | % | |||
| T | In situ | 51 | 15.45 | 8 | 11.27 | −4.76% |
| 1 | 210 | 63.64 | 47 | 66.20 | 0.48% | |
| 2 | 43 | 13.03 | 13 | 18.31 | 4.92% | |
| 3 | 8 | 2.42 | 2 | 2.82 | 0.32% | |
| 4 | 3 | 0.91 | 0 | 0.00 | −0.95% | |
| Unknown | 15 | 4.55 | 1 | 1.41 | ||
| N | 0 | 254 | 76.97 | 58 | 81.69 | 1.97% |
| 1 | 47 | 14.24 | 10 | 14.08 | −0.68% | |
| 2 | 8 | 2.42 | 2 | 2.82 | 0.31% | |
| 3 | 5 | 1.52 | 0 | 0.00 | −1.59% | |
| Unknown | 16 | 4.85 | 1 | 1.41 | ||
| M | 0 | 307 | 93.03 | 68 | 95.77 | 0.97% |
| 1 | 3 | 0.91 | 0 | 0.00 | −0.97% | |
| Unknown | 20 | 6.06 | 3 | 4.23 | ||
| Clinical stage | In situ | 50 | 15.15 | 8 | 11.27 | −4.47% |
| I | 175 | 53.03 | 42 | 59.15 | 4.95% | |
| II | 62 | 18.79 | 16 | 22.54 | 3.40% | |
| III | 18 | 5.45 | 2 | 2.82 | −2.90% | |
| IV | 3 | 0.91 | 0 | 0.00 | −0.97% | |
| Unknown | 22 | 6.67 | 3 | 4.23 | ||
| Total | 330 | 100.00 | 71 | 100.00 | ||
Pre-COVID totals calculated as the sum of the four pre-COVID rounds. Difference post–pre calculated comparing the post and the total pre-COVID percentages. Percentages show the distribution in the columns of each variable. p value of the distribution of each variable calculated with the exact test of Fisher. Dif = '^' indicates a significant difference of p > 0.05 between columns of the respective category.